ACPICA: Implicit notify support
This feature provides an automatic device notification for wake devices
when a wakeup GPE occurs and there is no corresponding GPE method or
handler. Rather than ignoring such a GPE, an implicit AML Notify
operation is performed on the parent device object.
This feature is not part of the ACPI specification and is provided for
Windows compatibility only.
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
diff --git a/drivers/acpi/acpica/evgpeblk.c b/drivers/acpi/acpica/evgpeblk.c
index 2a445df..e2e8164 100644
--- a/drivers/acpi/acpica/evgpeblk.c
+++ b/drivers/acpi/acpica/evgpeblk.c
@@ -472,9 +472,14 @@
gpe_index = (i * ACPI_GPE_REGISTER_WIDTH) + j;
gpe_event_info = &gpe_block->event_info[gpe_index];
- /* Ignore GPEs that have no corresponding _Lxx/_Exx method */
-
- if (!(gpe_event_info->flags & ACPI_GPE_DISPATCH_METHOD)
+ /*
+ * Ignore GPEs that have no corresponding _Lxx/_Exx method
+ * and GPEs that are used to wake the system
+ */
+ if (((gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) ==
+ ACPI_GPE_DISPATCH_NONE)
+ || ((gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK)
+ == ACPI_GPE_DISPATCH_HANDLER)
|| (gpe_event_info->flags & ACPI_GPE_CAN_WAKE)) {
continue;
}